Sumitomo Electric has successfully developed and commenced shipping samples of 10 Gbit/s direct modulation TOSA※1 for high-bit-rate optical transceiver devices such as XFP and SFP+, which are essential for public communications and LAN.

When used even with conventional low-bit-rate packages up to 2.5 Gbit/s, the newly developed TOSA provides excellent high-frequency characteristics and favorable optical waveforms in a wide temperature range from -40°C to 90°C.

Moreover, its metal parts are partially covered with plastic to insulate the signal ground from the frame ground, features specific to high-bit-rate devices.

Since the TOSA is compliant with XMD-MSA※2, demand for it is expected for both Telecom (ITU-T※3) and Datacom (IEEE※4) 10 Gbit/s transmission applications.